Concrete mold



May 19, 1925. 1,538,578

. R. MURRAY CONCRETE MOLD Filed-Maw 24. 1 24 14 @4 14 I v I l I'? -"'1FIL i2 10 1! 13 IN V EN TOR Patented May 19, 1925.

U N l T E D S T A RICHARD MURRAY, OF NEW YORK, N. Y.

CONCRETE MOLD.

Application filed May 24,

To all whom it may concern:

Be it known that I, RICHARD MURRAY, a citizen of the United States, andresiding at New York, invthe county of New York and State of New York,have invented certain new and useful Improvements in Concrete Molds, ofwhich the following is a specification, such as will enable thoseskilled in the art to which it appertains to make and use the same.

This invention relates to concrete molds and particularly to molds ofthis class designed for use in molding bricks or blocks to be mountedone upon another in the construction of a building wall and the like andfurther to a mold which may be used in forming a wall construction byintermittently forming predetermined portions of the wall structure bysaid mold, and the object of the invention is to provide a device of theclass and for the purpose specified by means of which the representationof a plurality of bricks or blocks may be formed in' one molded body,and whereby apertures may be formed therein, meansbeing employed wherebya single brick section or a predetermined number of brick sections maybe formed whenever desired; a further obj ect being to provide a mold ofthe class and for the purpose specified composed of separate detachablyand adjustably connected parts with means for holding the separate partsin predetermined spaced relation; a further object being to provide theend portions of the mold with means whereby a continuous series ofmolded sections may be formed on a wall structure; a still furtherobject being to provide means for holding the several parts of the moldin operative position and whereby parts thereof may be automaticallyseparated in the operation of releasing the holding means; and withthese 1 and other objects in view, the invention con sists in a deviceof the class and'for the purpose specified, which is simple inconstruction, efficient in use and which is constructed as hereinafterdescribed and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawing forms a part, in which the separate partsof my improvement are. designated by suitable reference characters ineach of the views, and in which:

Fig. 1 is a plan view of one form of mold which I employ, with part ofthe construction broken away and in section.

1924. Serial No. 715,522.

Fig. 2 is a transverse sectional view of the mold shown 1n Fig. 1 onan'enlarged scale and with part of the. construct-ion broken away.

Fig. 3 is a longitudinal sectional view through one end portion of themoldshowu in Fig. l and showing a modification.

Fig. 4 is a partial section on the line l-1 of Fig. 3.

Fig. 5 is a diagrammatic view showing another use of the mold showninFigs. 1 and 2 of the drawing, with part of the construction omitted, themold being shown in longitudinal section and mounted upon a wallconstruction partially formed by the use of said mold; and,

Fig. 6 is a section on the line 66 or Fig. 5, and on an enlarged scale.

a In the construction shown inFigs. 1 and 2 of the drawing, myimprovedmold is composed of a bottom or base member 10 which may be composed ofmetal if desired, but in the construction shown is composed of strip ofwood faced bya metal sheet 11. Side mold platemembers' 12 and 13 areemployed in coni'iection with the base member 10 .and maybe composed ofa suitably constructed metallic body, but in the construction shown arecomposed of wood strips faced on their inner faces by sheets of metal14. The member 13 is provided with inwardly projecting ribmembers15forming mold faces which represent on the concrete body formed by themoldor in one face thereof, bricksections as diagrammaticallyillustrated in Fig. 50f the drawing.

Pivotally mounted in connection with the top face of the member 12substantially cen trally thereof is a gage bar 16 having spacedapertures 17 at its free endportion which are adapted to operate inconnection with a. headed lock member 18 in connectionwith and 2. Thegagebar l6 operates'to hold the upper end portions of the members 12 ingthe members 12 and 13 inwardly to re the member 13 as clearly shown inFigs. 1

tain the same in proper position. One jaw,

the stationary jaw 20 of the clamp 19, is

adapted to seat in a keeper 21 secured to the outer face of the member12, while the adjustable and movable jaw 22 of the clamp.

engages a similar keeper 23 on the outer face of the member 13. \Viththis construction,

by releasing the jaw 22, the members 12 and signedto form an aperture inone end of a 13 will be automatically separated to free themselves fromthe molded body of concrete or similar material. On inner adjacent facesof the end-portions of the members 12 and 13 are U-shaped guide members24 to receive and support end walls or gates 25 and 26 which form afinish to the ends of the body to be formed in the mold, but these endwalls or gates may be spaced intermediate the two shown in Fig, 1 of thedrawing in the manner shown in Figs. 3 and l of the drawing wherein agate or wall 27 is shown, whereby a single brick size body may be formedor a body of any. number of brick size formed, as may be desired.

At the end portion of the mold, provided with the gate 25 as shown inFig. 1, is employed a transverse bar 28 which is secured to the top faceof the member 13 and passes through a keeper 29 secured to the top faceof the member .13, while the other end portion of the'mold is providedwith a bar 30 secured to the outer end of the member 12 adjacent to thelower end portion thereof and the bottom edge of which is in line withthe top face of the bottom member or base 10 of the mold, and the bar 30passes through a. keeper 31 secured to the member 13 and positionedthereon to retain the bar in the position above set out.

I also employ a core member 00 in the form of an elongated bar 34 havingon its lower face a plurality of depending and equally spaced corepieces 85 adapted to form apertures in the bodies formed by the mold,and as shown in Figs. 1 and 2 of the drawing the core pieces 85 restupon the base 10, and the core member 30 is retained in proper positionby transverse bars 36 positioned adjacent the end portions thereof andwhich cooperate with keepers37 mounted upon the members 12 and 13.

The mold shown in Figs. 1 and 2 of the drawing is designed primarily foruse in forming elongated blocks or sections of concrete, which whenformed represent a plurality of brick or block sections formed in oneunitary body, it being understood that the concrete is inserted into themold, when the parts thereof are assembled, through the spaces whichopen outwardly through the top thereof and when theconcrete section hasbeen formed and set sufficiently, the gage bar ismoved into inoperativeposition, the clamp operating to separate the members and 13, 'and theconcrete member removed, it being understood that the rods 28 and 30perform no functionin the formation of concrete block sections, as aboveset out. It

will also be understood that the clamp 19 is removable from the keepers21 and 23.

In the construction shown in Figs. 3 and 4, the gate or wall 2-7 isprovided with a longitudinally directed core piece 27 debrick or blockformed within the space between the gate or wall 25 and the gate or wall27.

In addition to using my improved mold for forming separate brick orblock sections as above set out, the same may be used in theconstruction of a wall or other concrete structure, in which event, thebottom or base member 10 of the mold is not employed; and in this use ofthe mold, the members 12 and 13 form side mold faces, which rest andbear upon the inner and outer faces of a previously formed wall orconcrete structure, which however has been formed by the said mold, andin Fig. 5 of the drawing, the wall or concrete structure is shown at 38.Inworking from left to right, the mold as shown in the drawing isemployed, and the bar 28 rests upon the top of a previously formedportion of the wall as indicated at the left of Fig. 5 of the drawing,while the bar'30 rests upon the top of the wall upon which the newsection is to be formed as shown at the right of Fig. 5 of the drawing,it being understood that said rods retain the mold in proper position orlongitudinal alinement. The clamp 29 is used for compressing the members12 and 13 and holding the same in firm engagement with the wallstructure 38 in the same manner as the engagement of said members withthe base member 10 in the first named use of the mold, and the gage bar16 serves tohold the top portions of the members 12 and 13 in properspaced relation. lVith the use ofthe mold as shown in Figs. 5 and 6 ofthe drawing, the core pieces 35 extend downwardly into the apertures 38? previously formed in the wall structure, as clearly illustrated inFig. 5 .ofthe drawing, whereby continuous passages are formed throughthe wall structure 38.

After the mold has been mounted in proper position as indicated in Figs.5 and 6 of the drawing, the concrete is poured thereinto, and allowed toset sufficiently to permit of the removal of the mold parts, which willbe a comparatively short time, es

pecially when quick setting cement or con crete is employed, and themold may be removed and shifted to form another wall section. It willalso be apparent that in the above operation or use of the mold shown inFig. 5 of the drawing, the end wall 25 as well as the guide members 2%are removed at the left hand end portion of the mold and the wall 26only is employed. In working from right to left however or in thereverse direction, a mold will be employed in which the rod 28 is at theright of the mold and the rod 30 at the left of the mold and the endwall 26 will be removed together with the guide members therefor. Inother words, the mold will be made up in lefts and rights, building wallor other concrete body structure, it will be apparent that any desirednumber of the molds may be employed, and the molds may be modified toform curvatures in the wall or concrete body structure as well as cornerformations, the distinctive novelty of my invention residing in theprovision of a portable mold device which may be quickly mounted inposition, and shifted into new positions in the formation of a wall.

In the last named use of the mold, it will be understood that theinwardly projecting rib members cooperate with the grooves previouslyformed by said rib members in forming predetermined sections of a wall;and in Fig. 6 of the drawing, I have shown one of the 'rib membersengaging the top recess of the wall structure 38.

It will be understood that while I have shown certain detailsconstruction for carrying my invention into effect and especially in theformation of the mold parts proper and the means for operating the same,and for retaining the same in spaced relation, I am not necessarilylimited to the details of construction here-in shown and described, andvarious changes therein and modifications thereof, may be made withinthe scope of the appended claims without departing from the spirit of myinvention Cir or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. A mold of the class described comprising two substantially parallelmold members, means whereby said members may be retained in spacedrelation, means for moving said members toward and from each other, andmeans for supporting the end portions of said members in connection withsupports arranged at different levels.

2. A mold of the class described comprising two substantially parallelmold members, means whereby said members may be retained in spacedrelation, means for moving said members toward and from each other, andmeans for supporting the end portions of said members in connection withsupports arranged at different levels, and for properly alining saidmembers on said supports.

A mold of the class described comprising two substantially parallel moldmembers, means whereby said members may be retained in spaced relation,means for moving said members toward and from each other, end membersfor supporting the end portions of said mold members in connection withpredetermined supports and for properly alining said members on said supports, said mold members being adjustable on said end members, and meanspositioned and in the construction of a between said members for formingfinished ends to the bodies formed by said mold.

i. A mold of the class described comprising two substantially parallelmold mem bers, means whereby said members may be retained in spacedrelation, means for movmg said members toward and from each other, endmembers for supporting the end portions of said mold members inconnection with predetermined supports and for properly alining saidmembers on said supports, said mold members being adjustable on said endmembers, means positioned between said'members for forming finished endsto the bodies formed by said mold, and a core member mounted inconnection with said first named members and suspended therebetween.

5. A mold of the class described comprising two substantially parallelmold members, means for adjustably retaining said members inpredetermined spaced relation, means coupled with said members andindependent of said last named means for moving one of said memberstoward and from the other and for retaining said members rigidly in apredetermined adjusted position, and means at the end portion of saidmembers for supporting a mold in conneotion with a predetermined supporthaving surfaces arranged at different levels.

6. A mold of the class described comprising two substantially parallelmold members, means for adjustably retaining saidv members inpredetermined spaced relation, means coupled with said members andindependent of said last named means for moving one of said memberstoward and from the other and for retaining said members rigidly in apredetermined adjusted position, means at the end portions of saidmembers for supporting a mold in connection with a predetermined supporthaving surfaces arranged at different levels, and means at the endportions of said members whereby finished end walls may be formed by themold at either orboth end portions thereof.

7. A mold of the class described comprising two substantially parallelmold members, means for adjustably retaining said members inpredetermined spaced relation,

means coupled with said members and independent of said last named meansfor moving one of said members toward and from the other and forretaining said members rigidly in a predetermined adjusted position,means at the end portions of said members for supporting a mold inconnection with a predetermined support having surfaces arranged atdifferent levels, means at the end portions of said members wherebyfinished end walls may be formed by the mold at either or both endportions thereof, a core mounted in connection with the top walls ofsaid members and positioned centrally therebetween, and

- means for retaining said core against displacement.

8. A mold of the class described comprising two substantially parallelmold members of predetermined length and height, a bar secured to one ofsaid members and adjustably connected with the other of said membersfor. supporting said members in spaced relation, means involving anadjustable element for moving said members into predetermined spacedrelation, and support ing members at the end portions of said moldmembers, one of said supporting members being adjacent the upper end ofthe mold members and the other adjacent the lower end thereof.

9. A mold of the class described comprising two substantially parallelmold members of predetermined. length and height, a bar secured to oneof said members and adjustably connected with the other of said membersfor supporting said members in spaced relation, means involving anadjustable element for moving said members into predetermined spacedrelation, supporting members at the end portions of said mold members,one of said supporting members being adjacent the upper end of the moldmembers and the other adjacent the lower end thereof, and means fordetach-ably supporting a transverse wall within and between said moldmembers.

10. A mold of the class described comprising two substantially parallelmold members of predetermined length and height, a bar secured to one ofsaid members and adjustably connected with the other of said members forsupporting said members in spaced relation, means involving anadjustable element for moving said members into predetermined spacedrelation, supporting members at the end portions of said mold members,one of said supporting members being adjacent the upper end of the moldmembers and the other adjacent the lower end thereof, means fordetachablyv supporting a transverse wall within and between said moldmembers, and means on said mold members for supporting a core betweenthe adjacent faces of said members.

11. A mold of the class described comprising two substantially parallelmold members of predetermined length and height, a bar secured to one ofsaid members and adjustably connected with the other of said members forsupporting said members in spaced relation, means involving anadjustable element for moving said members into predetermined spacedrela tion, supporting members at the end portions of said mold members,one of said supporting members being adjacent the upper end of the moldmembers and the other adjacent the lower end thereof, said supportingmembers involving bars secured to one of said mold members andadjustable in the other mold member, means for detachably supporting atransverse wall within and between said mold members, and means on saidmold members for supporting a core between the adj acent faces of saidmembers.

In testimony that I claim the foregoing as my invention I have signed myname this 21st day of May, 1924.

RICHARD MURRAY.

